乙酸酐 、 3,4-Dihydro-9-hydroxy-5,10-dimethoxy-1-methyl-1H-naphtho<2,3-c>pyran-3-essigsaeure-methylester 生成
Nanaomycin-methylester 、 3,3',4,4',5,5',10,10'-Octahydro-9,9'-dihydroxy-1,1'-dimethyl-5,5',10,10'-tetraoxo<6,6'-bi(1H-naphtho<2,3-c>pyranyl)>-3,3'-diessigsaeure-dimethylester 、 3,3',4,4',5,5',10,10'-Octahydro-9,9'-dihydroxy-1,1'-dimethyl-5,5',10,10'-tetraoxo<8,8'-bi(1H-naphtho<2,3-c>pyranyl)>-3,3'-diessigsaeure-dimethylester